<template>
 <div>
<van-button type="primary" style="position: fixed;right: 0;
top: 0; z-index: 999;">=={{finished}}==loading:{{loading}}</van-button>
 <van-list
  v-model="loading"
  :finished="finished"
  finished-text="到底了"
  @load="onLoad"
>
  <van-cell v-for="item in list" :key="item" :title="item" />
</van-list>
 </div>
</template>
<script>
export default {
  data() {
    return {
      list: [],
      loading: false,
      finished: false,
    };
  },
  methods: {
    onLoad() {
      // 异步更新数据
      // setTimeout 仅做示例，真实场景中一般为 ajax 请求
      setTimeout(() => {
        for (let i = 0; i < 20; i++) {
          this.list.push(this.list.length + 1);
        }

        // 加载状态结束
        this.loading = false;

        // 数据全部加载完成
        if (this.list.length >= 50) {
          this.finished = true;
        }
      }, 3000);
    },
  },
};
</script>
<style lang='less'  scoped>
    
</style>
